2 years ago

Load Balancing implementation in networks

Organizations nowadays have to process huge amounts of data. With the advent of digital age, all data has been digitalized and is being sent over the internet. Organizations dealing with such a complex and enormous amount of data have to be ready to deal with it. Cyber criminals are on the loose who utilize DDoS attacks to wreak havoc on servers, tearing them apart and stealing valuable private data.

The answer to all these problems is a simple methodology called Load Balancing. The term Load Balancing means to reallocate data to all network resources in such a way that it is evenly distributed and each of the resource gets to process data. With the implementation of Load Balancing, servers become faster and visitor queries are resolved quicker. The network capability to handle requests also increases. With Load Balancing in place, the network is able to make the most out of its resources and hence become precise and efficient, giving better output in lesser time with same hardware and software resources.

Load Balancing onto servers can be done in a variety of ways. The DNS is used to redirect visitor requests towards another server. This methodology needs the addition of another server. This server is responsible for calculating and allotting queries to different parts of server. More than a few servers are necessary so that Load Balancing works at its peak potential. The Load Balancing servers are paired with failsafe and backup servers so that the operations continue even when a server fails to process tasks. Server’s physical location is of little retrospect but their task remains unchanged, which is to process data effectively and make sure that the entire server functions well.

DDoS assaults work by overloading a server with more data than its bandwidth allocation which crashes them. Sometimes crashes are caused by genuine reasons, such as a famous event being broadcasted. There are 2 options left to organizations to tackle such problems: to implement new, heavier servers which will take huge amounts of money and time to get functional or to implement Load Balancing onto existing servers which will ensure they improve their present servers and takes little money. Investing in some equipment and dedicated server to process Load Balancing is a simple answer to solve such problems and reduce hurdles in organizations operations.

Load Balancing isn’t just a theory but is verified method with hard results which show its effective nature. It can be implemented on present hardware and software, which makes it versatile and capable of being up to task and scaling up as per requirements. Load Balancing works in the same way as multithreading, in which same processors work to execute tasks better and it appears that there are more physical servers than implemented. 

2 years ago

DDoS Protection and assault types

Distributed Denial of Service attacks are a way of cyber attack in which hackers use brute force attack, overloading networks with traffic. The network crashes hackers damage server and steal data. When a DDoS attack becomes successful, hackers can move in to modify programs as they wish, steal sensitive data such as credit card numbers and personal correspondence which is worth money as they use it to extort or steal money from legal holdings. All this necessitates DDoS Protection to be in place to stop such malicious attempts at cyber attacks.

DDoS Protection is necessary nowadays and its implementation in networks is a must. DDoS assaults can be classified in 3 types:

1.      Volume Based Assaults

These assaults largely rely on auto generated bogus traffic/Spoofed Packets which is sent to servers in massive quantities. Server crashes because it cannot process it all. It is measured in bits per second.

2.      Protocol Assaults

These assaults are initiated after careful study of target because it targets the weaknesses in a network, tearing it apart. Since they are completely new in nature, there are no counter measures for this. Also termed Day Zero Attacks. It is measured in packets per second.

3.      Application Layer Assaults

These attacks send way too much network requests to the server and it is not equipped with enough resources to compute it all. Measured in requests per second.

Despite all of these dangerous attack types, there are DDoS Protection methods which can be integrated on networks to add security and protect from threat of DDoS attacks. Some DDoS Protection techniques are as below:

1.      Volume Based DDoS Protection

This type of DDoS Protection sends data coming in globally to data filtering centers which are equipped with hardware and software to clean out bogus traffic, auto generated requests and bad data packets. When data has been cleansed, it is transferred back to the original network for processing. This DDoS Protection methods gives the network filtered data which is less in quantity and absent of any attack signature.

2.      Protocol DDoS Protection

There are some data packets which seem completely normal in nature but these requests in reality have malicious coding in them. When it reaches their destination on the machine, they execute and cause errors and unwanted functions. DDoS Protection protocol handles such problems by denying bad requests entry onto machine. It incorporates better software checking techniques which are able to determine normal from bad requests. This DDoS Protection can also stop human and computer attempts at a network and take action accordingly.

DDoS attacks are initiated from many different computers and internet connections, making them very powerful. These resources generate automatically produced traffic which is bogus and has no real purpose. This is directed towards targeted networks and when their capacity to process data packets is overloaded; the server fails to respond and crashes. This necessitates that strong DDoS Protection to be in place at all times. 

2 years ago

How Web Application and Application Firewall work

An Application Firewall acts as a security barrier between the operating system, mainframe or any other computer and the tasks is performs. They are not to be confused with normal firewalls because firewalls function by analyzing and processing data that the computer is processing itself. It has predefined protocols according to which data is either denied or allowed to execute on the machine. On the other hand, Application Firewall performs all the functions as mentioned with the added utility of controlling all the activities that the computer is executing. It also has a grip on the data applications are accessing and giving as output.

Application Firewall is rather complex because its protocols rely on manual configuration. This requires the user to specify commands and actions that the firewall will take for each and every scenario. This is necessary to ensure that the firewall works perfectly. It is important that the user has understanding of how Application Firewalls function and should know to set data from ports and specify what to do with entering and exiting data. This feature actually comes to the advantage of user in the long run because once it has been learned how to handle the Application Firewall, it can be set exactly as you like and it becomes a versatile tool.

Application Firewall has built in protocols which do not allow DLL (Dynamic Link Libraries) to function in case their code seems sketchy and they do not correspond to normal  codes, which shows that they have been tampered with and are not secure, so should not be allowed to function and execute on the machine. 

Application Firewalls are excellent programs to implement onto system. They work perfectly on the machine and in sync with other programs once the manual settings have been set. Their strict security setting make sure that no malicious software gets through and data remains secure from all forms of cyber attacks. Although some malicious softwares may get through normal firewalls, they still require permission from system to perform whatever there is in their code and infect computer. Application Firewall denies any such malicious attacks by disallowing execution requests and either removes or quarantines such applications. It achieves this by cross referencing the content with normal content that such files should have. If they don’t match, the program is stopped.

Web Application Firewall function quite the same way in almost all aspect but for the fact that their work is broadened or in some cases limited to web based programs. Web Application Firewall have the primary function of analyzing performance of web based applications and making sure that they remain unaffected and their security remains intact.

Web Application Firewall processes HTML, HTTPS, XML-RPC and SAP data being sent to and from machine and can dead stop session hijacks, SQL Injection, buffer overflowing and XSS cyber attacks. Anything out of ordinary data traffic causes the Web Application Firewall to become alert and deal with the program accordingly.

2 years ago

Different branches of Application Delivery Networking

Different branches of Application Delivery Networking

Application Delivery Networking is a process by which data is consistently handled. It gives the advantage of managing application data properly which leads to faster performance and increased data protection along with functionality. Application Delivery Networking is an important factor for many jobs requiring vast quantities of data handling and it is divided into 4 main branches. These subcategories of Application Delivery Networking can be matched together as required and provide tremendous applications for data handling. Namely, they are virtual platform integration, on-box management, programmatic API powered solutions and Enterprise Manager. With these divisions, Application Delivery Networking allows organizations and even individuals to take advantage from the gains given to data from it.

1.      VMware vSphere/Partner Platform Integration

Among other parts of Application Delivery Networking, VMware vSphere is a very essential component which boasts the advantage of being a highly versatile environment which serves as a station for syncing all devices and running their data and applications together on a singular virtual platform. It automatically sets configurations to sync devices and console can present their data.

All devices connected to VMware vSphere share its resources such as IP addresses, data being relayed and all other data. VMware vSphere in Application Delivery Networking is a beneficial addition for data management centers because it lets all devices to function together and share resources.

2.      Enterprise Manager

Enterprise Manager is a preexisting function of Application Delivery Networking which serves as an overall monitor and daily log for all the processes being run, compiled and executed. It maintains a comprehensive log about all these activities. Enterprise Manager in Application Delivery Networking reduces cost of operations, gives a singular report data and application performance and allows administration to directly oversee all activities. It is capable of gathering the entire activities of the day and presenting them as a singular report which is very helpful for assessments and diagnostics.

Not only that, but it serves as the brain of Application Delivery Networking because it also has the integrated capability of improving application processing and regulating data flow and application processes. By monitoring all actions, it is proficient at using this information to create a prediction model which not only permits calculation of budgets but also predicts success rate and processing of different data generated by applications.

3.      Programmatic API

Programmatic API of Application Delivery Networking takes care of general processes on the virtual machine. It is programmed using SOAP or XML and can give auto generated help and diagnostics, automatic configuration of devices as per environment they are being run in. it is imperative that Programmatic API be made in such a way that it supports Application Delivery Networking to the fullest.

All Application Delivery Networking should be able to integrate coding and data in other languages such as Perl, Python, .NET, and Java to itself. This adaptability permits programmers proficient in any language to change it and add patches and updates. They are also able to modify the program as they please.